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Cellular Respiration Unit 5-2 Notes Mr. Hefti – Pulaski Biology
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1. What is cellular respiration? Using O 2 to release energy from C 6 H 12 O 6 Makes “ATP” (pure biological energy) Enzyme controlled process
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CO 2 – 0 2 Cycle
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2. Which organisms? All organisms – Even producers!!!
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3. Where? Mitochondria
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4. The chemical reaction C 6 H 12 O 6 + 6O 2 6H 2 O + 6CO 2 + ATP “Glucose and oxygen yields water, carbon dioxide and ATP energy.”
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5. When? “Always” Rate depends upon organism’s level of activity
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6. Other important facts… Breathing ≠ respiration; breathing = physical process Other organisms take in oxygen through gills (fish), spiracles (insects), or simply diffusion through the cell membrane
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7. Importance ATP supplies energy for all life functions
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